Dumping grate



April 21, 1925. 1,534,380

' J. E. HANCOCK DUMPING GRATE Filed June 7, 1923 Patented Apr. 21, 1925.

- UNITED, STATES PATENT OFFICE.

Jnssn n. HANCOCK, ORIDU roN'r, snonsrn.

DUM'PING GnA'rE.

Application filed June 7,

To all whom it may concern:

Be it knownthat 1, Jesse l lancoon, citizen of the UnitedStates,,residing at Du Pont, in the-county of Clinch and State ofGeorgia, have invented certain new and useful Improvements in- DumpingGrates, of which the following is a speoificatimi.

'ihisinvcntion relates to dumping grates, such as are shown in mycopendi'ng-application, Eerial Number 590,088, filed September 2S, 1922,the said application hav ing since become Patent Number 1,460,242

and has specialreference to a novelarrangement for holding the dumpingsectlons yieldably "against dumping Tmoveme-nt at times, or in. dumpingposition at other times.

One iniiportant object of the invention 1s to provide an improvedandfsimpliiied means whereby the dumping sections of grates of thischaracter will be normally held in. horizontal or fuel supportingp'osltion.

A second important object of the inven tion is to provide novel meanswhereby said sections may be locked in either horizontal or tiltedposition according to the wishes of the operator.

.In this instance, the invention contem-v plates certain novelarrangements of yield able supporting means and locklng devicescooperating to produce the desired results,

and such means will be hereinafter described in detail, illustrated inthe drawings accompanying this specification, and set forth specificallyin the nnttter claimed.

In these ('h-awings, the same reference characters are used for the sameparts throughout, and t Fig. 1 is a plan view of a dumpmg grateconstructed in accordance with this invention, one of the grate sectionsbeing shown in horizontal position, and the other being. tilted. i

Fig. 2 is an end view thereof.

Fig. 3 is a perspective view of. one form of lock for the tilting bar.

,Fig. 1 is a perspective View of a second form of lock therefor.

Referring to the drawings, the numeral 10 indicates the main frame ofthe invention, and in this main frame are supported a pair of dumpingsections 11, which are provided at their ends with journal portions 12carried in bearings 13 on the underside of the frame 10. These bearingsare ar- 1923. Serial No. 643,903.

ranged in alinement at the front and back portions of the frame so thatthe dumping sections dump laterally. Each of the journal sections areprovided with a squared portion 14 whereon is fitted an arm 15 havingaseries of openings 16 therein. At each end of the frame 10,there isprovided a centrally disposed bracket 17, and to each arm 15 isconnected a spring 18 which has its ren'iaining end connected to thebracket 17, the spring 18 being hooked into any one of the openings 16according to the leverage and stress desired to be exerted on the arm15. These ends 141 also carry levers 19 which are connected by links 20with the lower ends of levers 21 extending upward to a suitable slot 22in the deck 23 of the main frame. By the oscillation of the levers 21 intheir respective slots, it will be obvious that the dumping frames maybe tilted against the action of the springs 18,

thesesprings normally holding said frames horizontal, and thishorizontal position is assured by reason of the upstanding ends of thelevers 21 engaging against shoulders 2% formed by off-setting the endsof the slot 22.

In each of the forms shown, suitable keepers are provided whereby thelevers may be locked in position either with the dumping sections 11horizontal, or with the sections in dumping position, and in the formshown. in Fig. 3, these keepers comprise each a hinge-like structurehaving a leaf 25 fixed to the deck 23, and a second leaf 26 notched asat 27 and foldable over the respective end of the slot 22, the arrangement being such that when the lever'2t is held in the notch, it will beagainst the shoulder 24: while, when this lever bears against the otherend of the movable leaf.

it is held in tilting position. In place of 4, in one position beinglocked to prevent dumping of the grate, and in the other position beinglocked to hold the grate dumped. Notches may be provided in these levers21 to engage the edges of the L-shaped members 28, if desired.

From the foregoing, it will be seen that the invention provides a devicewhich is simple in construction, but yet is eflicient in operation. Itwill be plain to those skilled in the art that certain modifications maybe made in the form and construction of the invention withoutdepartingfrom its material principles, and it is accordingly desired that it beunderstood, that not only the precise forms shown in the drawings andhereinbefore described, are to be considered as my invention, but alsoall modifications thereof which may fall within the scope claimed.

I claim:

1.111 a grate of the class described, a main frame, alined bearings onsaid main frame, a dumping frame having alined journals receivable insaid bearings, arms projecting downward from said bearing, said armsbeing provided with a plurality of spring end receiving openings,springs engaged in selected openings in said arms, means on the mainframe for securing said springs thereto under tension, other armsprojecting downwardly from said journals, rocking levers pivoted to themain frame, and links connecting said rocking levers and the lastmentioned arms.

2. In a grate of the class described, a main frame, alined bearings onsaid main frame, a dumping frame having alined journals receivable insaid bearings, arms projecting downward from said bearing. said armsbeing provided with a plurality of spring end receiving openings,springs engaged in selected openings in said arms, means on the mainframe for securing said springs thereto under tension, other armsprojecting downwardly from said journals, rocking levers pivoted to themain frame, links connecting said rocking levers and the last mentionedarms, and means to hold the rocking levers in selected positions.

3. In a grate of the class described, a main frame, alined bearings onsaid main frame, adumping frame having alined journals receivable insaid bearings. arms projecting downward from said bearing, said armsbeing provided with a plurality of spring end receiving openings,springs engaged in selected openings in said arms, means on the mainframe for securing said springs thereto under tension, other armsprojecting downwardly from said journals. rocking levers pivoted to themain frame. links connecting said rocking levers and the last mentionedarms, means to hold the rocking levers in selected positions, said meanseach comprising a member pivoted to the main frame and movable to swingacross the path of the respective rocking lever intermediate its extremepositions.

In testimony whereof I affix my sign ature.

JESSE E. HANCOCK.

(Ill

